CN-122003061-A - Display device

Abstract

According to one embodiment of the present specification, there is provided a display device including a substrate including first, second, and third light emitting regions that emit light of different colors, a light emitting element provided on the substrate, an encapsulation layer provided on the light emitting element, and a light control member provided on the encapsulation layer between the first, second, and third light emitting regions, wherein the light control member includes a first light control layer provided on the encapsulation layer, a first insulating film provided on the first light control layer, and a second light control layer provided on the first insulating film.

Inventors

• JIANG YANSHU
• Kang Jixi

Assignees

• 乐金显示有限公司

Dates

Publication Date

20260508

Application Date

20250919

Priority Date

20241101

Claims (20)

1. 1. A display device, the display device comprising: A substrate including a first light emitting region, a second light emitting region, and a third light emitting region for emitting light of different colors; A light emitting element provided on the substrate; an encapsulation layer disposed on the light emitting element, and A light control member provided on the encapsulation layer between two light emitting regions among the first light emitting region, the second light emitting region, and the third light emitting region, Wherein the light control member includes: A first optical control layer disposed on the encapsulation layer; a first insulating film disposed on the first light control layer, and And a second light control layer disposed on the first insulating film.
2. 2. A display device according to claim 1, wherein the first and second light control layers are formed of TiN.
3. 3. A display device according to claim 1, wherein the first light control layer has a thickness in the range from 90nm to 120nm.
4. 4. A display device according to claim 1, wherein the first light control layer has a light reflectance of 30% or less in a thickness direction.
5. 5. A display device according to claim 1, wherein the second light control layer comprises a plurality of patterns sequentially arranged, patterned and separated in the first direction.
6. 6. The display device according to claim 5, wherein a width of a pattern provided at both ends of the first direction among the plurality of patterns in the first direction ranges from 30nm to 70nm or from 150nm to 300nm.
7. 7. The display device according to claim 6, wherein light reflectivity of the pattern provided at both ends in the first direction is 35% or more.
8. 8. A display device according to claim 1, wherein the second light control layer overlaps the first light control layer in a thickness direction.
9. 9. A display device according to claim 1, wherein the light control member further comprises a second insulating film provided over the second light control layer and a third light control layer provided over the second insulating film.
10. 10. The display device of claim 9, wherein the third light control layer comprises a plurality of patterns sequentially arranged, patterned, and separated in a first direction, and The width of the pattern disposed at both ends of the first direction among the plurality of patterns in the first direction ranges from 30nm to 70nm or ranges from 150nm to 300nm.
11. 11. A display device according to claim 10, wherein the light control member further comprises a third insulating film disposed on the third light control layer.
12. 12. The display device according to claim 11, further comprising an empty space defined by the third insulating film, Wherein the empty space is disposed between the plurality of patterns.
13. 13. The display device according to claim 9, further comprising an empty space defined by the second insulating film, Wherein the second light control layer comprises a plurality of patterns sequentially arranged, patterned and separated in a first direction, and The empty spaces are disposed between the plurality of patterns.
14. 14. The display device of claim 1, further comprising a color filter layer disposed on the encapsulation layer, Wherein the color filter layer covers the light control member.
15. 15. The display device according to claim 14, wherein the color filter layer includes a plurality of color filters transmitting light of different colors, and The light control member is disposed between the plurality of color filters.
16. 16. A display device, the display device comprising: a substrate including light emitting regions for emitting light of different colors and non-light emitting regions disposed around the light emitting regions, A light emitting element provided on the substrate; An encapsulation layer disposed on the light emitting element; A first optical control layer disposed on the encapsulation layer in the non-light emitting region, and A color filter layer disposed on the encapsulation layer and covering the first light control layer, Wherein the first optical control layer is formed of TiN.
17. 17. A display device according to claim 16, wherein the first light control layer has a thickness in the range from 90nm to 120nm.
18. 18. A display device according to claim 17, wherein the first light control layer has a light reflectance of 30% or less in the thickness direction.
19. 19. The display device of claim 16, further comprising a first insulating film disposed over the first light control layer and a second light control layer disposed over the first insulating film, Wherein the second light control layer comprises a plurality of patterns sequentially arranged, patterned and separated in a first direction.
20. 20. The display device of claim 19, wherein the second optical control layer is formed of TiN, and The width of the pattern disposed at both ends of the first direction among the plurality of patterns in the first direction ranges from 30nm to 70nm or ranges from 150nm to 300nm.

Description

Display device Technical Field The present description relates to a device, and in particular, for example but not limited to, a display device. Background With the development of information society, various demands for display devices for displaying images are increasing, and various types of display devices, such as Liquid Crystal Display (LCD) devices and Organic Light Emitting Diode (OLED) display devices, are being used. Among the display devices, the OLED display device, which is a self-luminous type, has a wider viewing angle and a higher contrast ratio, and can be lighter and thinner than an LCD device, and has lower power consumption because it does not require a separate backlight. In addition, there is an advantage in that the OLED display device can be driven at a low voltage, has a fast response time, and particularly has an inexpensive manufacturing cost. Recently, there is an increasing demand for an Augmented Reality (AR), virtual Reality (VR) or equivalent ultra-high resolution display device that requires the use of such an OLED display device. The description provided in the discussion of the background section should not be considered prior art merely because of the mention in or association with this section. The discussion of the background section may include information describing one or more aspects of the subject technology, and the description in this section is not intended to limit the present disclosure. Disclosure of Invention The present specification aims to provide a display device in which color mixture between adjacent pixels can be suppressed or prevented. The present specification also aims to provide a display device in which deterioration of uniformity and luminance according to viewing angle can be suppressed or prevented. The present specification also aims to provide a display device in which abnormal light emission phenomenon due to light reflection of a black matrix can be suppressed or prevented. The objects of the present specification are not limited to the above objects, and other technical objects can be inferred from the following embodiments. According to one embodiment of the present specification, there is provided a display device including a substrate including first, second, and third light emitting regions that emit light of different colors, a light emitting element provided on the substrate, an encapsulation layer provided on the light emitting element, and a light control member provided on the encapsulation layer between the first, second, and third light emitting regions, wherein the light control member includes a first light control layer provided on the encapsulation layer, a first insulating film provided on the first light control layer, and a second light control layer provided on the first insulating film. According to another embodiment of the present specification, there is provided a display device including a substrate including light emitting regions emitting light of different colors and non-light emitting regions disposed around the light emitting regions, a light emitting element disposed on the substrate, an encapsulation layer disposed on the light emitting element, a first light control layer disposed on the encapsulation layer in the non-light emitting regions, and a color filter layer disposed on the encapsulation layer and covering the first light control layer, wherein the first light control layer is formed of TiN. Details of other embodiments are included in the detailed description and the accompanying drawings. According to the embodiments of the present specification, light color mixing between adjacent pixels can be suppressed or prevented. According to the embodiments of the present specification, uniformity and luminance decrease according to viewing angles can be suppressed or prevented. According to the embodiments of the present specification, an abnormal light emission phenomenon due to light reflection of the black matrix can be suppressed or prevented. According to the embodiments of the present specification, color mixture, color viewing angle degradation, luminance degradation, and abnormal light emission phenomena can be suppressed or prevented, so that operation defects of the display device, improvement of luminance, and the like can be prevented and power consumption can be reduced. However, the effects obtainable from the present specification are not limited to the above-described effects, and other effects not mentioned will be clearly understood by those skilled in the art to which the present specification pertains based on the following description. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the inventive concepts claimed. Drawings The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and